@inproceedings{giammarresi1997twodimensional,
  abstract = {The aim of this chapter is to generalize concepts and techniques of formal language theory to two dimensions. Informally, a two-dimensional string is called a },
  added-at = {2013-08-21T13:32:44.000+0200},
  author = {Giammarresi, Dora and Restivo, Antonio},
  biburl = {http://www.bibsonomy.org/bibtex/2dcffa1a70b66b3d8a10864bcfd100173/ripe},
  booktitle = {Handbook of Formal Languages},
  description = {Two-Dimensional Languages - Springer},
  doi = {10.1007/978-3-642-59126-6_4},
  editor = {Rozenberg, Grzegorz and Salomaa, Arto},
  interhash = {f52e08e5e852cf0c90688c6f04c6fef0},
  intrahash = {dcffa1a70b66b3d8a10864bcfd100173},
  isbn = {978-3-642-63859-6},
  keywords = {2d languages survey},
  language = {English},
  pages = {215-267 },
  publisher = {Springer Berlin Heidelberg},
  timestamp = {2013-08-21T13:32:44.000+0200},
  title = {Two-Dimensional Languages},
  url = {http://dx.doi.org/10.1007/978-3-642-59126-6_4},
  year = 1997
}
@inproceedings{cherubini2009picture,
  abstract = {The aim of this paper is to collect definitions and results on the main classes of 2D languages introduced with the attempt of generalizing regular and context-free string languages and in same time preserving some of their nice properties. Almost all the models here described are based on tiles. So we also summarize some results on Wang tiles and its applications.},
  added-at = {2013-07-07T15:04:22.000+0200},
  author = {Cherubini, Alessandra and Pradella, Matteo},
  biburl = {http://www.bibsonomy.org/bibtex/2ead34c74c1e53bce6e330bb7c90ea6f1/ripe},
  booktitle = {Algebraic Informatics},
  description = {Picture Languages: From Wang Tiles to 2D Grammars - Springer},
  doi = {10.1007/978-3-642-03564-7_2},
  editor = {Bozapalidis, Symeon and Rahonis, George},
  interhash = {c91f76942468585dbc876b571582ecc6},
  intrahash = {ead34c74c1e53bce6e330bb7c90ea6f1},
  isbn = {978-3-642-03563-0},
  keywords = {2d expressions languages regular tiles wang},
  pages = {13-46 },
  publisher = {Springer Berlin Heidelberg},
  series = {Lecture Notes in Computer Science},
  timestamp = {2013-07-07T15:04:22.000+0200},
  title = {Picture Languages: From Wang Tiles to 2D Grammars},
  url = {http://dx.doi.org/10.1007/978-3-642-03564-7_2},
  volume = 5725,
  year = 2009
}

@article{giftsironmoneyranisironmoney1972abstract,
  added-at = {2013-06-10T10:55:41.000+0200},
  author = {Sironmoney, Gift and Sironmoney, Rani and Krithivasan, Kamala},
  biburl = {http://www.bibsonomy.org/bibtex/2beb1e289610f05d8e06514ba6e586cf6/ripe},
  interhash = {b8fee6a5ac9736afe823777367d79f34},
  intrahash = {beb1e289610f05d8e06514ba6e586cf6},
  journal = {Computer Graphics and Image Processing},
  keywords = {2d formal grammars languages matrix},
  pages = {284-307 },
  timestamp = {2013-06-10T10:55:41.000+0200},
  title = {Abstract Families of Matrices and Picture Languages},
  volume = 1,
  year = 1972
}

@inproceedings{ginsburg1967abstract,
  added-at = {2014-02-05T14:14:16.000+0100},
  author = {Ginsburg, Seymour and Greibach, Sheila A.},
  biburl = {http://www.bibsonomy.org/bibtex/2a9d5712e7b748282414bf0cfdb4aa7ec/ripe},
  booktitle = {SWAT (FOCS)},
  ee = {http://doi.ieeecomputersociety.org/10.1109/FOCS.1967.3},
  interhash = {785198b6869302f51d6add76fa130d8b},
  intrahash = {a9d5712e7b748282414bf0cfdb4aa7ec},
  keywords = {2d abstract family languages},
  pages = {128-139},
  publisher = {IEEE Computer Society},
  timestamp = {2014-02-05T14:14:16.000+0100},
  title = {Abstract Families of Languages},
  url = {http://dblp.uni-trier.de/db/conf/focs/focs67.html#GinsburgG67},
  year = 1967
}

@article{siromoney1973picture,
  added-at = {2014-02-05T14:20:27.000+0100},
  author = {Siromoney, Gift and Siromoney, Rani and Krithivasan, Kamala},
  biburl = {http://www.bibsonomy.org/bibtex/2252657eef97b1435ae9a3cfbe165e59a/ripe},
  description = {dblp},
  interhash = {fbb7333a821ccee5cd403c6be3911836},
  intrahash = {252657eef97b1435ae9a3cfbe165e59a},
  journal = {Information and Control},
  keywords = {2d abstract family languages},
  month = {June},
  number = 5,
  pages = {447-470},
  timestamp = {2014-02-05T14:20:27.000+0100},
  title = {Picture Languages with Array Rewriting Rules},
  url = {http://dblp.uni-trier.de/db/journals/iandc/iandc22.html#SiromoneySK73},
  volume = 22,
  year = 1973
}

@article{buntrock1998growing,
  added-at = {2014-02-06T09:15:23.000+0100},
  author = {Buntrock, Gerhard and Otto, Friedrich},
  biburl = {http://www.bibsonomy.org/bibtex/2130207fd30b3bef3b75c60611d34e37c/ripe},
  ee = {http://dx.doi.org/10.1006/inco.1997.2681},
  interhash = {0e2617e4532a4539f27f8cc9edacb9db},
  intrahash = {130207fd30b3bef3b75c60611d34e37c},
  journal = {Inf. Comput.},
  keywords = {context-sensitive grammars growing},
  number = 1,
  pages = {1-36},
  timestamp = {2014-02-06T09:15:23.000+0100},
  title = {Growing Context-Sensitive Languages and Church-Rosser Languages.},
  url = {http://dblp.uni-trier.de/db/journals/iandc/iandc141.html#BuntrockO98},
  volume = 141,
  year = 1998
}

@article{dahlhaus1986membership,
  added-at = {2014-02-06T09:22:20.000+0100},
  author = {Dahlhaus, Elias and Warmuth, Manfred K.},
  biburl = {http://www.bibsonomy.org/bibtex/272330102500b473c096dd3d11b7a7366/ripe},
  ee = {http://dx.doi.org/10.1016/0022-0000(86)90062-0},
  interhash = {0ab31f01e447ec51cd4329cf79220a0f},
  intrahash = {72330102500b473c096dd3d11b7a7366},
  journal = {J. Comput. Syst. Sci.},
  keywords = {context-sensitive grammars growing},
  number = 3,
  pages = {456-472},
  timestamp = {2014-02-06T09:22:20.000+0100},
  title = {Membership for Growing Context-Sensitive Grammars is Polynomial.},
  url = {http://dblp.uni-trier.de/db/journals/jcss/jcss33.html#DahlhausW86},
  volume = 33,
  year = 1986
}

@article{book1973structure,
  added-at = {2014-02-06T13:35:26.000+0100},
  author = {Book, Ronald V.},
  biburl = {http://www.bibsonomy.org/bibtex/24034ff1643f4b8d7d63d35bb1e1bae6a/ripe},
  ee = {http://dx.doi.org/10.1007/BF00976059},
  interhash = {ee4c7c5227503a0c351602eb1b1a3c2f},
  intrahash = {4034ff1643f4b8d7d63d35bb1e1bae6a},
  journal = {International Journal of Parallel Programming},
  keywords = {context-sensitive formal grammars languages},
  number = 2,
  pages = {129-139},
  timestamp = {2014-02-06T13:35:26.000+0100},
  title = {On the structure of context-sensitive grammars.},
  url = {http://dblp.uni-trier.de/db/journals/ijpp/ijpp2.html#Book73},
  volume = 2,
  year = 1973
}

@misc{buntrock1996wachsende,
  added-at = {2014-02-10T10:58:15.000+0100},
  author = {Buntrock, Gerhard},
  biburl = {http://www.bibsonomy.org/bibtex/2a2a68f42217af0ad90bcd9695ecb75e0/ripe},
  howpublished = {Fakult\"{a}t f\"{u}r Mathematik und Informatik, Universit\"{a}t W\"{u}rzburg},
  interhash = {372ea6e77542920871e0edbfa2014426},
  intrahash = {a2a68f42217af0ad90bcd9695ecb75e0},
  keywords = {context-sensitive growing languages},
  month = {Juli},
  note = {Habilitationsschrift},
  timestamp = {2014-02-10T10:58:15.000+0100},
  title = {Wachsende kontext-sensitive {S}prachen},
  year = 1996
}

@article{sironmoney1977parallelsequential,
  added-at = {2013-06-10T12:23:54.000+0200},
  author = {Sironmoney, Rani and Subramanian, K. G. and Rangarajan, K.},
  biburl = {http://www.bibsonomy.org/bibtex/2fea6c96cd43ff15eb54a98615b30de1b/ripe},
  interhash = {2176581c5fa55b165d7812f503aa0726},
  intrahash = {fea6c96cd43ff15eb54a98615b30de1b},
  journal = {Intern. J. Computer Math.},
  keywords = {2d grammars languages matrix tabled},
  pages = {143 - 158},
  timestamp = {2013-06-10T12:23:54.000+0200},
  title = {Parallel/Sequential Rectangular Arrays with Tables},
  volume = 6,
  year = 1977
}
@inproceedings{siromoney1986advances,
  added-at = {2013-06-12T10:06:32.000+0200},
  author = {Siromoney, Rani},
  biburl = {http://www.bibsonomy.org/bibtex/2b2344d1627440f5dd6aae3a9a4eecb28/ripe},
  booktitle = {Graph-Grammars and Their Application to Computer Science},
  description = {dblp},
  editor = {Ehrig, Hartmut and Nagl, Manfred and Rozenberg, Grzegorz and Rosenfeld, Azriel},
  interhash = {d8bb6f376e78821db23de52b0ee2cf5d},
  intrahash = {b2344d1627440f5dd6aae3a9a4eecb28},
  isbn = {3-540-18771-5},
  keywords = {2d formal grammars languages},
  pages = {549-563},
  publisher = {Springer},
  series = {Lecture Notes in Computer Science},
  timestamp = {2013-06-12T10:06:32.000+0200},
  title = {Advances in array languages.},
  url = {http://dblp.uni-trier.de/db/conf/gg/gg1986.html#Siromoney86},
  volume = 291,
  year = 1986
}

@article{chomsky1959phrase,
  added-at = {2014-02-25T08:39:30.000+0100},
  author = {Chomsky, Noam},
  biburl = {http://www.bibsonomy.org/bibtex/24dc4843e1a0cf218e4cfe1d2ffc951fd/ripe},
  description = {dblp},
  interhash = {2913e59d94bcbfa08cdc0650212cbc9f},
  intrahash = {4dc4843e1a0cf218e4cfe1d2ffc951fd},
  journal = {Information and Control},
  keywords = {context-sensitive grammars growing},
  month = {December},
  number = 4,
  pages = {393-395},
  timestamp = {2014-02-25T08:39:30.000+0100},
  title = {A Note on Phrase Structure Grammars},
  url = {http://theory.lcs.mit.edu/~iandc/ic59.html},
  volume = 2,
  year = 1959
}

@book{hopcroft2007introduction,
  added-at = {2014-02-25T12:43:35.000+0100},
  address = {Upper Saddle River, NJ},
  author = {Hopcroft, John E.},
  biburl = {http://www.bibsonomy.org/bibtex/25f485f2b1566e6f8a79c2328831fa38b/ripe},
  description = {Edition 1 1979 ISBN 978-0-201-02988-8},
  edition = 3,
  file = {Pearson Product page:http\://www.pearsoned.co.uk/Bookshop/detail.asp?item=100000000259454:URL;Amazon Search inside:http\://www.amazon.de/gp/reader/0321514483/:URL},
  groups = {public},
  interhash = {dd2f503d33b58eb9e25211d8cfd92db9},
  intrahash = {5f485f2b1566e6f8a79c2328831fa38b},
  isbn = {978-0-321-51448-6},
  keywords = {context-sensitive languages regular},
  publisher = {Pearson Addison-Wesley},
  timestamp = {2014-02-25T12:43:35.000+0100},
  title = {Introduction to Automata Theory, Languages and Computation},
  username = {flint63},
  year = 2007
}

@article{chomsky1956three,
  added-at = {2014-03-19T12:44:17.000+0100},
  author = {Chomsky, Noam},
  biburl = {http://www.bibsonomy.org/bibtex/27cbce06bd5d4d51100b503fc45273608/ripe},
  ee = {http://dx.doi.org/10.1109/TIT.1956.1056813},
  interhash = {19b800c0c296d6a6b43bf28a53258889},
  intrahash = {7cbce06bd5d4d51100b503fc45273608},
  journal = {IRE Transactions on Information Theory},
  keywords = {formal grammars languages},
  number = 3,
  pages = {113-124},
  timestamp = {2014-03-19T12:44:17.000+0100},
  title = {Three models for the description of language.},
  url = {http://dblp.uni-trier.de/db/journals/tit/tit2n.html#Chomsky56},
  volume = 2,
  year = 1956
}

@book{hopcroft1969formal,
  added-at = {2014-03-19T13:12:10.000+0100},
  address = {Boston, MA, USA},
  author = {Hopcroft, John E. and Ullman, Jeffrey D.},
  biburl = {http://www.bibsonomy.org/bibtex/22739ae00c1affd02374905d7c25453c0/ripe},
  interhash = {58f2aef8cbc0f19c29b0bffe4c3a7901},
  intrahash = {2739ae00c1affd02374905d7c25453c0},
  keywords = {formal grammars languages},
  publisher = {Addison-Wesley Longman Publishing Co., Inc.},
  timestamp = {2014-03-19T13:12:10.000+0100},
  title = {Formal Languages and Their Relation to Automata},
  year = 1969
}